Type-writing machine.



JfH. BARR.

TYPE WRITING MACHINE.

APPLICATION FILED MAR.27,191 3.

1,071,388, PatentedAug.26,1913.

2 SHEETS-SHEET l.

WITNE55E5= INVENTER 14:5 ATTORNEY J. H. BARR.

TYPE WRITING MACHINE. APPLIGATIONTILED MAR.27,1913,

1,071,383. Patented Aug. 26, 1913.

2 SHEETS-SHEET 2.

\A/ITNEEEEIE w m K Z%%% g. M 9W H15 ATTEIRNEY UNIT l S T/ i 501-132 3-1.- nann. or new YORK, N. 1

PATEN r orrioa.

SSIGNOR' TO REMINGTON TYPEWRITER COM PANY, OE ILION. I'll! YORK. A CQRPOBATION OF NEW YORK.

TYPE-WRITING MACHINE.

atentcd Aug. 2t}. 1912;.

Original application filed November 15, 1912, Serial No.- 731.506. Divided and this application filed March 27, 1913. Serial No. 757,089.

To all whom it may concern:

Be it known that l, Jmm II. Bane, citizen of the United States, and resident at the borough of. Manhattan, city of New York,

'5 in the county of New York and State of New York, have invented certain new and useful Improvemei'its in "lypeJ-Vriting Machines, ofwhieh the following is a specification.

My invention relates to carriage feeding -mr escapementdevices for typcwriting machines and its' main object is to provide improved devices of the character specified.

To the above and other ends my invention consists in the features of construction, comhinations of devices and arrangements of an arm 84 on a rock shaft 83. At its sides said member 82 is connected by ears So with arms 87 rigid on a rock shaft 88 which rock shaft is connected to the rock shaft 85 in the usual or any other suitable way. Fixed to this rock shaft 88 is an upwardly extending arm 85,) which is bent rearward at its upper end and terminates'in avertically disposed operating face 90 (Fig. 3).. The carriage (i9 is provided with a feed rack 91 with which mesh a pair of gear wheels 92 and 93 arranged face to face and having a lost motion connection as in the Smith Premier No. machine. The gear wheel'92 is suitably connected with the usual carriage motor or spring drum 94 and the gear wheel 93 meshes with a pinion 95 which is loosely mounted on a horizontal shaft 96 extending fore and aft of the machine, said shaft. bear- 35 of a part hereinafter rcferred t-o as a cam -45 .72 and each connected through a train of defragmentary front to rear vertical sectional view of a No. 10 Smith Premier typewriiing machine embodying my in ention, only so much of said machine being illustrated as is necessary fully to disclose said invention. Fig. 2 is a fragmentary detail view showing a front: elevation of thecscapen'ient. niechanism. Fig. 3 is a fragmentary side elevation partly in section of, F Fig. at is a perspective view of certain of the actuating devices shown in the preceding figures.

Figs. .3 and (3 are seetitmal views of the capement wheel, the sections being taken respectively transversely of said wheel and axially thereof. Fig. 7 is a detached view ing at its ends in pivot pins 97. The rear pivot pin 97 is supported on the spring drum casting 98 while the forward pivot pin is supported on a bracket 99 secured by screws 100 to a plate 101 fast on tli tfasting 98, the shaft passing freely through an enlarged opening 101 in said plate (Fig. 3). The pinion,95 is provided with a hub 95 which abuts'a washer 102 that engages with a novel escapemcnt wheel hereinafter described and thus prevents forward movement of the pinion 95 along the shaft 96. Said pinion is provided with crown ratchet teeth which normally engage with corresponding ratchet teeth on a clutch member 103. Sand clutch' member is provided with fingers 104 which engage with notches formed in a flange 105 on the shaft 96.. A coiled spring 106 is confined between the fiange ltla and the head of the clutch member 103 'and constantly presses the teeth of said clutch member into engagement. with the crown ratchet teeth of the pinion 95.

4 Suitable releasing means (not shown) are provided for moving the clutch member member. Fig. 8 a fragmentary face view of a part or cover of the escapemcnt wheel.

As shown inl ig. 1 the main frame of the machine comprises end plates 5 connect-ed by a top plate (Lahore which is mounted a Stationary track-way (37 connected through anti-friction halls "1b with a carriage 69 sup porting-a platen 70 with the front face whereof coti x-rate type bars Tl pivot-ed at vices comprising a 'link iii." a toggle elen'ient 74. a second link 75 and a hell crank 76 with a key stcnil'i' provided with a key 78; The toggle elements '54 are each fulcrunicd as at 7!) on a fixed support 0 and are provided with restoringsprings R1. The tail port ons 74 m the toggle elements are adapted to. actuate a curved universal bar or member, 92 which is vertically disposed and is pivot, ally connected at about its middle at 83 to the gear wheel 93 from theshaft 96 so that the carriage may move freely leftward under the action of the spring drum. Ordinarily, however, the carriage is'connect'ed with the shaft 9611s described and said shaft is controlled by escapementdevic-es which are 0perative from the. -u'iiiversal bar 82. These eseapement. dpvioels comprise an escapement -wheel 107 arranged on the. shaft 96 between \the'plate 101 and the bracket 99. Said wheel rearward and thus in eifectdisconnecting comprises (as clearly appears from Fig. 6) a hub or barrel portion 108 integral with which is a. ratchet wheel 109 cooperativewherewith is a spring-pressed back pawl 110 of the usual construction (Figs. 2 and 3). The hub is bored out as indicated at 111 to fit over) the shaft 96 to which it is secured by aset screw '112 that is received in a tapped hole in the hub and abuts against the shaft 96.

Secured to the forward face of the ratchet wheel 109 by any suitable means is a dished plate 113 the periphery of which is formed with a series of notches 114 (Fig. 8). The

(. forward end of the hub 108 is slightly reduced as indicated at "108 and receives a plate 115. wh1ch isprovided with a series of tongues 116,.sa1d tongues being turned rearward at right angles to the plane ofthe plate and fitting into the notches 11 1 in which said tongues are suitably secured.

The plates 115 and 113 provide in efi'ecta hollow box in the periphery of which are aseries of rectangular openings or slots 117 ally outward from a common center which lies in the axis of rotation ofthe escapement wheel or rotary member." Each finger has'at'its inner end a rounded teat 119 which fits loosely in a round guide hole 120, the series of guide holes 120 being formed radially in the front end portion of the hub 108 to the rear of the reduced end 108. The outer end'portions of the fingers 118 are reduced as indicated at l21, these reduced portions forming with the body ortions shoulders 122 and projecting radia 1y outward through the openin'gs 117.- These reduced portions 121 are rectangular in cross section and provide a series of relatively movable escapement teeth.

As will be understood from Fig. 6 the fingers or toothed members 118 are adapted to swing to a limited extent fore "and'aft .of the machine within'their receptacle or be); 113,115, owing to the fact that the partof the box farthest from'fthe center is of smnewhat greater depth than the height of the toothed members due to the dishing of the cover plate 113. "During the swinging "movements of the members 118,.the purpose of which is to provide for the .escapement or stepb.y-step turning movement of the eseapeme'nt wheel and parts controlled thereby, the shoulders 122 will slide back and forth over the 'inner faces of the tongues while the inner ends of the toothed members 118 arecontrolled by the guiding teats 119, the result being that the members-118 are in eli'ect loosely pivoted in their containing element or h'older. Twelve of these toothed membersllS are-shown in the present instance but, of course, the number may be-varied to suit the particular conditions of the construction in hand.

'lhe movable teeth are adapted to co-act with a fixed arresting means orabutment which is shown detached in Fig. 7, said means being in the form of a plate 123, the right-hand end of which provides a vertical stopping face 124 in the path of theteeth and for engagement thereby. The plate 123 is provided with an enlargement 125 which is secured by a headed screw 126 to the plate 101. A dowel pin 12'? projects forward from the plate through a hole in the enlargement and assists to prevent displacement of the plate 123. Said plate is .--ofl'-set forward from the enlargement 1.25, as .will be understood from Fig. 3, so as to be 1n the plane of rotation of the teeth 121 when these are in operative position at the forward ends of the slots 117. In order to' insure that the teeth are in line with, or in the plane of rotation of, the stop 123 as they hear it during the rotation of the element or wheel 107, a camming member or means 128 separate from said wheel is provided, said camming member being secured as by rivets 12% to the stop 123 and its free end being curved or flared rearward to provide a cam surface to engage the teeth 121 when they are at the rear ends of the slots 11?, said surface operating to cam or swing the teeth forward as the wheel is rotated in the direction of the arrow in Fig. 2.

In order to disengage the teeth successively from the arresting means or face 12 1- so as toprovide for a step-by-step escapement of the eseapement wheel, devices are provided comprising a pusher or actuator 130 horizontally disposed and pivoted at.

131 at its forward end to aroeker member- 132- which is best shown in Fig. 4. This rocker member comprises a crank arm portion 13310 which the-actuator 130 is piroted, and a hub portion 134.- whieh is suitably secured to a rock shaft 35, the ends whereof are pivoted on ad ustable screw pivots136 supported in ears 99* projecting downward from the bracket 99. The hub portion 134 is provided with a leftward extension 137 having an enlargement 138 in which is secured a pin 1539, the in extending laterally rightward paralle with the ."pivot and contacting with an extensicn13T above the same, said pin being adapted to be actuated by the operating face 5 0- on the arm S9; 'llhe'se parts are normally separated as shown in Fig. A .coile frestormg spring 140 is secured at its present case to avoid interference with other parts. The actuator 130 is normally held up against a stop 142 on the rocker member by a wire spring 143. Said'actuator passes rearward er a cut-out 128 in the cam device 128 and its rear end normally lies just in front of the operative tooth 1.21. The right-hand side of the actuator is cut away to provide an inclined or cam face 130 The actuator is constantly acted on by the spring 14-0 which-through the rocker 132 tends to draw said actuator forward, but this movement is controlled by stop devices comprising a stop pin 144- ran-ring downward andre'arward from the actuator 132 below its adjustable screw-stop 145' secured to an ear 101" on the plate 101 (Figs. 1 and i In operation. an actuationof one of the printing keys 78 acting through the tog gle element 74 will more the universal hard! rearward and turn the rock shaft S8,eausi ng the operating face to swing rearward and contact with the pin 139. thereby swing'ng the rocker 132-.rearward and causing the actuator 130 to push the operative tooth 121 toward the rear. This tooth it will be understood is maintained by the carriage motor or spring drum in engagement with the stop face 124 and as soon as said tooth has moved rearward transverselv of the escapeinent wheel far enough to isengage from said stop face, the spring drum will operate to turn the wheel and cause a letter space movement of the ca-rriage,-the wheei being arrested by the engagement of the next succeeding tooth 121 with the stop face 124;. If on release ot'the printing key theactuator should fail to swing bodily forward out of the path of the ad 'aneing tooth 121. the edge of said toot-h acting against the cam tace'130 will cam the actuator 130 downward, saidactuator swinging on its pivot 131 independently of the rocker out of the path of the advancing '1 tooth which will move on until arrested by the stop face 124.

Under such-circumstances as soon as the actuator has swung forward out-otcontact" withthe tooth 124. it will be thrown upward on its pivot 131 by the spring 143 and will be in position at thenext key actuation to contact with the-frontface of the engaged tooth 121 to disengage the same and permit a second letter space advancemovement of the carriage. The teeth '121 after being successively moytidvoi'it 'tif thef path of the stop 1ace 124, will under ordinary conditions remain in rearward position in contact with the plate 11 as shefwn at the upper part of Fig. (3 until the rotation of the escapement wheel brings said teeth into co-action with the cam member 128 which will operate toswing the tooth forward into engagement with the plate 115 as shown at the lower part of Fig. at which time the tooth will be in register or line with the stop 124.

Among the advantages obtained from my present invention it will be observed that itprovides for a. full drop, the carriage moving the full-letter space distance during the movement of a, printing key in one direc-. tion. Another advanta e is that the invention does away with its liability (if skipping, which is a defect common to'escapcment mechanism particularly under rapid operation. By interpos'ing a. positive fixed abutmen or arresting device in the path ot the, esca iement wheel teeth it is impossible to obtain an accidental or undesired ad-f Vance movement by reason of the abutment being pushed or cammed out 70f the way. The only manner in which an ad 'anee can he had is by moving the co-act-ing part, that is, the tooth of the escapement wheel, itself, and to do this a key operation is necessary. A third chief advantage is that I obtain uniformity in the timing of the escapeinenta In prior constructions; owing to the warpmg of the escapemen-ts wheel itself, or to looseness in its mounting, it is impossible to avoid some variatiqniiin -timing so that the let-off will take p'laciati one time during the key stroke when one of the escapement wheel teeth is in'operation, and at another and different. time in a succeeding key stroke when another; tooth is in, operation. By employing an the present instance a. single actuator and a single arresting device it is obvious that the timing of the escapementwill always be the same no matter which of the movable teeth in in operation, for even though the time at which the different teeth are picked up by the actuator and consequently the extent of movement of said teeth may varyslightly, nevertheless. 115 the time at which the teeth are moved out of engagement with the arresting means will always be the same.

Various changes may be made without departing from my invention. Generic claims to the present construction have been made in the arent application. Serial No. 731,506, filed ovember 1.5, 1912, of which the present a )plic-ation is a division. The claims'in the presentuse are 12 specific to theform ofinverlt-ion herein disclosed.

What I claim as new and desire to secure 151 feeding mechanism for 13 1-. In carriage typewriting machines, the combination of a rotary element provided with a plurality of teeth, said teeth being movable on and independently of said element and being arranged to project radially outward from a common center which lies in the axis of said rotary element, stationary means cooperating successively with said teeth to arrest the carriage, and means for moving said teeth on saidelement into and out of position to cotiperate with said first named means. i

2. In carriage feeding mechanism for typewrit-ing machines, the combination of an escapen'ierit wheel,, ..radially arranged teeth thereon, a cooperative elementfandmeans engaging successively with said teeth for moving them transversely of the plane of rotation of said wheel.

3. In carriagefeeding mechanism for ty-pmvriting machines, the combination of an cscapement wheel, teeth .mounted to swing pivotally thereon independently of each other. said teeth being arrangedto pro ject radially outward-from acommon center which is contained in the axis of said escapement wheel, a fixed abutment cooperative successively with said teeth .to arrest said wheel, and a key controlled actuator adapted to engage with said teeth when they are'in contact with said abutment to release them from cotiperation therewith.

4. In carriage feeding mechanism for typewriting machines, the combination of an escapement wheel comprising a box pro-.- vided with slots in its periphery, teeth radially arranged within said box and movable in said slots,an abutment mounted on the frame of the machine and cooperative with said teeth, and a key controlled actuator for said teeth.

5. In carriage feeding mechanism for typcwriting machines, the combination of an escapement wheel cmnprising a hollow box provided with slots in its periphery, teeth radially arranged within said box and movable in said slots transversely of said wheel, an abutment mounted on the frame of the machine and cooperative with said teeth, and a key controlled actuator for said teeth.

6. In carriage feeding mechanism for typewriting machines, the combination of an escapement wheel comprising a hollow box provided with slots in its periphery, teeth radially-arranged within said box and movable in said slots transversely-of said wheel,

an' abutment mounted on the frame of the machine and cooperative with said teeth, a

key controlled. actuatorforsaid teeth, and a fixed cam for movin' said teeth into position for co-action wit said abutment.

7. 1m carriage feeding mechanism for typewriting machines, the combination of a toothed escapement wheel, a cooperative vabutment, an actuator for the teeth of said escapement wheel, a'rocker on which said actuator is pivotally supported, and a key controlled member for operating said rocker, said member being normally disconnected from said rocker. v

8. In carriage feeding mechanism for typewriting machines, the combination of a .toothed escapeme'nt wheel, a cooperative abutment, an actuator for the teeth of said escapement wheel, a rocker on which said rocker for said actuator, a spring normally maintaining said actu'ator against said stop, and devices normally disconnected from said rocker for operating the same, said actuator being also provided with an inclined or cam face with which said teeth are adapted to co-act to overcome said spring and move the actuator. relatively to said, rocker.

10. In a typewriting machine, the combination of type bars, actuating devices therefor, a curved universal bar operative from said actuating devices, a pivoted actuator operative from said curved universal bar, an escapment wheel provided with relatively movable teeth on which said actuator operates, an abutment adapted to cooperate with said teeth, a carriage, and connections I providedwith relatively movable teeth, said wheel being connected with said carriage, a cooperative abutment for said teeth, and a pivotally mounted actuator for said teeth, said actuator being operative from said arm.

Signed at the borough of Manhattan, city of New York, in the county of New York, and State of-New York, this 26th day of March, A. D. 1913.

. JOHN H; BARR. Witnesses: CHARLES E. SMITH,- E. M. WELLS.

qopiel of this patent may be obtained for five cents each, by addressing the Commissioner oi Patents} Washington, D. c." 

